🚀 go-pugleaf

Kimmy Chan wrote:

> Hi,
>
>     My company's business is highly dependent on network service for
> both internal LAN access and external data feeds. Currently, we don't
> have any redundancy build in any network path to backup the system and
> we are planning to do so. We are using Cisco products (switches, routers
> etc) and some network vendors proposed Fast Ether Channel with spanning
> tree protocol to provide alternate network path. However, our concern is
> the spanning tree protocol which incurs a switch-over time (vary from
> 5sec to 50sec) that will make all connected IP sessions disconnect and
> they need to be established again. Any other better methods avoid the
> session disconnect?
>

I agree with other people who have posted that TCP should be able to
withstand pauses in the low tens of seconds.  More transparent options
involve sophisticated NAT.  See:

 "Load Sharing using IP Network Address Translation (LSNAT)", Der-Hwa Gan,
  Pyda Srisuresh, 03/09/1998,
ftp://ftp.ietf.org/internet-drafts/draft-srisuresh-lsnat-02.txt